Horseshoe-machine



(No Model.) 5 Sheets-Sheet 1.

J. A. 'BURDEN HoRsEsHoE MACHINE.

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(No Model.) 5 Sheets-Sheet 2.

J. A.. BURDEN. HORSESHOE MACHINE.

N0.524,3o7. Patented Ang. 14, 1894.

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No. 524,307. m4411444 411g. 14, 1894.

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(No Model.)

Patented Aug. 14, 1894.

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FIG! /J W/ TNE SSE m w Mm J. A. BUR'DEN. HORSBS'HOE MACHINE.

`5 Sheets-v'SheetJ 5.

Patented Aug. 14, 18.94.

UNIT-ED i STATESPATENT' OFFICE.

JAMES A. BURDEN, oF TROY, NEW YORK.

HoRsjEsHoE-M'ACHINE.

SPECIFICATION forming part of Letters Patent No. 524,807, dated August ,'14,- 1894. ,1

' Appncaion mea Augusta 189s. 4serial No. 42.22511. (No model.)

To .ar/ZZ. whom it may concern:

` Be it known that I, JAMES A. BURDEN, of

the city of Troy, Rensselaer county, State'ofl New York, have invented new and useful Im-' laterally displaced by the top swaging will be forced inwardly toward the die, and to adapt 'this-proceedure to be used in machines running with alternating periods of. motion and` rest, as distinguished from older machines of this class which were operated with continuous motion.

l In older machines for making horse shoes,

as heretofore practiced, blanks have been bent upon a frog-die, and then moved away from the die before being' top swaged, and n blanks have been bent in advance of the die,

. cated, and caused to descend upon the shoe by a bender moving withthe latter, asshownV in the Patent No; 17,665, granted to `Henry Burden J une 30, 1857, and in both of which older machines designated, the shoes were top swaged' by rotating dies, as distinguished from top swagin g dies that were vertically reciprowhile at rest, and in which position there was no tendency for the shoe to curl or buckle from the roller action of the swaging die. To accomplish these better results I bend the blank at a pointa little in advance of v the toeend of the frog-form die, so as to leave a` C- form space between the inner edge of the blank, and the toe end of the frog-die, around which'th'e blank is bent, into which space the metal 'forced laterally by the topy pressure of the swa ging die may enter and thus avoid the necessity of forcing it outwardly, 0r inwardly to produce a linen the edge of the shoe, during the operation of swaging.

. Accompanying this specitication to form a part of it there are fiveplates of drawings containing thirteen figures illustrating my invention with the same designation of parts by letter reference used in all of them.

lWheel separated from the latter; illustrating frogand the bent blank. Fig. 2, shows in` also an angular recess formed in the toe-end of the die-frog, a blankholder entered therein, and shown 'in cross-section, and a blankwhich has been broken off lat its endsfor convenience in illustration; and which blank is.

shown in a position to be bent according to my improved method. Fig. 5, isa side elevation of the parts shown at Fig. 4. Fig. 6,isa side view of that end of the blank-holder which by its form is adapted to enter anangular'recess in the toe-end of the frog-die; this villustration shows a part of Vthe angular side of the holder and a partof the rounded edge of the latter on which the'blank is bent;

also a4 shoulder formed in the blank-holderabove its rounded edge. Fig. 7, shows the angular side ofy the entering end of the` blankholder with its angular face fronting the view Fig. 8, an end view of its entering end, vand Fig.

9, illustrates the blank as having been bentv around the frog-die and with the-blankLholder removed. Fig. 10 shows a side view of a part of the die-wheel, the arm which operates the blankholder bracket, and holder; one of the frog-dies, with the rock-shaft, which actuates the holder, and the pivotal connection the'latter makes with the arm bracket shown incross section. when within a recess in the frog-die being in-l dicated in fulllines, and as removed by dot-f ted lines.v Fig. 11 is a side view of a part of the die-wheel, with one of lthe frog-dies, the

blank and swaging die, aswell as the die'.

wheel shaft shown in section, and with the swaging-die shown in a position 'to descend upon the partly formedshoe. Fig. l2` shows the same parts that are illustrated at Fig. 11,`

but with the swaging-die as operated-to de scend on the .bent blank. Fig. 13 is aper; spective of a machine for making horse shoes with my improved method and means made applicable thereto.

The machine to which my invention is shown The position of the blank holder as applied and lmade applicable is that one embodying `the general features which are illustrated and described in Letters Patent No. 373,125, granted to me November 15, 1887.

The several parts of the apparatus thus illustrated are designated by letter reference and the function of the parts is described as follows:

The letter F designates the frame-or housing of the machine, J' its main driving shaft actuated by a pulley not shown, J2 its shaft operating the bending mechanisrmand S' the blankholder rock-shaft, arranged to have its bearings in brackets m2.

The letters O, O, designate lthebend ers actu ated by cams O2, O2,YY on the Yshaft J2, Ythese benders at their lower ends being made with rollers r, and arranged to run in guides g.

The letter G designates a gear-*wheel arranged on the driving sha-ft J', and G2 another .fgear-wheel mounted on the shaft J2, adapted to mesh into the gear-wheel G'.

The letters G3 designate beveled gears of which there is one at each side of the ma-v chine arranged on the shaft J', which gears each mesh into a beveled gear-wheel G4, lat each side of the machine to operate the side swagers g5 g5.

The letterJ4 designates the dieswlheel shaft., and W the die-wheel. l

The letter R designates fa'double ratchetwheel arranged on the end of the :die-wheel shaft, where eitended through its bearing in the frame, a-ndT a pawl-holder arranged :ec-` centrcally on lthe shaft J', ,by which Athe ratchet-'wheel is' actuated to move thediewheel shaft land die-wheel with intermittent periods of moti-on and rest.

The `letters D designatethe frog-dies, which` are arranged on the fiat faces f, of the difewheel, although but two of these dies'are shown, at Fig. 13. These frog-dies are'shown as separated from the Ymachine at Figs. 1, 2, 3, 4, 5 `and v9*, and are mounted thereon at Figs. 1l, 12 and 13.

The letter B ldesignates a'blan'k, and B2 the blank after it has been bent around one of "the frogs d2, by the benders O, O, to rest upon the fiat plate surface da, of the die proper encircling the latter at its sides d5, and toe-end d4.

The .letter N designates an angular recess which is formed in the to`e-end of the die- 1 frogs d2., and this recess iscut out of thefrog at its 4toe-end lto extend down through the latter to the top of the die-plate d2.

. The letter H designates 4a blank holder which at its recessentering end E, is'made to have an angular .face h2, on one iof its sides adapting it to enter theangular rrecess N, inthe die-frog, and this blank holder is made with a shoulder h2, andia rounded outer face h4, below the latter,y and which rounded 4face y' when the blank-holder is entered within the recess N, projects beyond thetoeend d4l of the die-frogs, .so that as the blank is bent on the rounded projecting outer edge of the around its project-ing rounded .frog-'die d2.

holder to` curve inwardly against .the sides of the die-frog,y it is so ben-t in advance of the toe-end of the latter, and thus incloses the space C, between the toe-end of the die-frog and the inner edge of the blank. This blankholder is arranged upon the lower end of an arm A, which latter at'its upper end is keyed on to the rock-shaft S', and by which said arm is operated to swing outwardly and inwardly at its lower end.

The letter P designates a bracketl whichl is made adjustable to the lower endofsaidarm by means of a slot S2, formed in said bracket, a bolt b projected from the latter, and a nut n3, threaded on said bolt. This bracket holder is on its inner end journal'edfon' tothe pintle'.

shaft 103, connected to the bracket, and on which journaled connection the fbla-nkhold'er can rise or fall at its outer end'. When this blank holder is in position to'enfter therecess N, by the movement of the arm-A, the holder rests on 'thef-offsetarm aloftfh-e bracket Rand after having been actuated'to enter the recess N-,its movement vis 'timed-to have it remain therein'whi-le the blank is being bent ledge, and the As the arm-Arecedes, and the'd'ie-twheel u :and frog-die on the latter with which the l holder 'engages advances, th'eblank-holder is free to rise on itsouter en'd,while hengdrawn The letter M designates a' smoking die which is 'operated to ydescend 'fon' to the shoe after 'the latter-hasbeen ben-tv fro-m'a'blank form around the ldie-frog 'as before-described;

and is retained thereon, with the shoe resti-ng,

on the iiat die-plate da, die M is to straighten 'out th-eshoe while restinsg yon the die-.plate d2, toforml any ldesired concavity ,in the top of 'the shoe,`by forcing inwardly toward the die-frog wi-thin the space between the 'blankl and :the toe-'end of the die-frog, (Where the blankfisbent ,inad Vance of the latten) the metall moved laiterally to produce such shaping or concavity.

This swaging die is operated byIafcon-nection made with the drivin-'g shaft, which is'4 not shown, by -which it is vertically reciprocated At the toeendof the sWaging-die-face there is projected downwardly therefrom theanfg-ular plate V, which latte-rias the :swagingdie descends Aenters the recess Nymade inthe toe-endof the die-frog, before the shaping IIO The function of this i i `and swaging face ofthe die M, commences to t engage with thev top of the shoe. This projecting plate V, on its outer face is in curved alignment at o2, with the toe-en d of the dief frog,and when entered within the recess N,

t advance of the toe-ends of the latter, to put i 5 the shoes into a position to be properly swaged by the descent ofa swaging die.

The essential feature of my improvement in the manufacture of horse shoes as applied to horseshoe `machines operating with alterzo nating periods of motionand rest, is to bend the blank in advance of the'die-frog to form a space betweenfthe latter and the blank, so that when top swaged for shaping or the production of concavity, the metal moved lateri ally will fill this space, rather than crowd outwardly when the blank is in contact with the die-frog and thus change the outward contour of the shoe; hence I do not limit my invention to the use of the' precise means illustrated 3o and described'herein, but I do limit itto vthe use of such connected process steps as will in their application as Well as in their sequence produce the same results;

\ Having thus described my invention, what 3 5 I claim, and desire to secure by Letters Patent, is

1. The combination with a series of frogform dies operated to move connectedly with alternating periods of motion and rest, of a 4oblank-holder and mechanism for actuating said blank-holder whereby it is adapted to enter a recess formed in the toeend of each of the die-frogs when at rest, and to project j i thereat beyond the latter, on which projection of the blank-holder and on the die frog,

y the blank can be bent; and whereby said Va blank is being bent thereon, and then to reblank-holder is also adapted to move out from its engagement with the die frog,when the4 bending is completed, substantially in the. manner as and for the purposes set forth.

'2. In the manufacture of horse shoes, the combination of a series of frog-formed dies, operated to move connectedly with alternating periods of motion and rest; a holder and mechanism for operating said holder whereby 5 5 Y it isl adapted to enter a recess made inthe toe-end of each of the die-'frogs to project beyond the toe-end of the latter, and to remain therein While the frog-form die is at rest, and

6o cede therefrom; aswaging die operated to de scend on to the bent shoe and frog-form diev ata succeeding period of rest .to top-swage the shoe, and` then recede before the frog formldie moves, substantially inthe manner as and for the purposes set forth.

3. Inv an apparatus for bending horse shoe blanks, and in succession top-swaging them,

the combination with a series of frog-formed dies connectedly operated to move with alterf 7o nating periods of motion and rest,and` each made with a recess in its toe-end, of a blankholder and mechanism for operating said holder whereby it is adapted and operated to enter the recess of the adjacent frog-form-die to project beyond it, and to remain therein until the blank is bent on the holder and the die frog, and then to recede therefrom; and a swaging-die having a plate at its toe-end on its under surface adapted as the swaging-die descends to enter the recess in the die-frog, and to top-swage the shoe when the latter and the frog-die are atasucceeding period of rest, substantially in the manner as and for the purposes set'forth. .t

Signed at the city of Troy, New York, this '7th day of July, 1893, in the presence of the two witnesses Whose names are hereto Written.

JAS. A. BURDEN. 'Witnesses:

W. E. HAGAN, NICHOLAS J. GABLE.

Correction in Letters Patent No. 524,307.

It is hereby certified that in Letters Patent No. 524.,307,Igra.nted August 14, 1894 upon the application of James A. Burden, of Troy, New York, for an improvement in Horseshoe-Machines, an error appears in the printed specification requiring the following eorreetion, viz: In line llll, page 2, the Word smoking shoul'd rea-d swaying,- end that the said Letters Patent should be reed With this correction therein that the same may conform to the record of the oase in the Patent Office.

`Signed, countersigned, and settled this 4th day of September, A. D.v1894.

JN0; M. REYNOLDS,

[SEAL] Assistant Secretary of the Interior.

`Counter-signed:

S. T. FISHER, v

' Acting Commissioner of Patents. 

